Furnace lining for metal smelting

Abstract

The utility model relates to a furnace lining for metal smelting, which is applied to a metal smelting furnace body, a furnace lining composite mechanism is arranged in the metal smelting furnace body, a locking mechanism is arranged in the metal smelting furnace body, and the furnace lining can be effectively and firmly fixed in the metal smelting furnace body through the design of the locking mechanism. According to the structure, through mechanical elements such as the lead screw, the locking arc plate and the locking rod, it is guaranteed that the furnace lining is always kept stable in the smelting process, the safety of the smelting process is guaranteed, in addition, the locking mechanism is convenient to rapidly assemble and disassemble, operation is easy and convenient, and the cost is low. Compared with the prior art, equipment maintenance efficiency is remarkably improved, downtime and labor cost are reduced, secondly, the furnace lining composite mechanism optimizes the performance of the furnace lining through a multi-layer material structure, and a working layer on the inner layer of the furnace lining composite mechanism is made of a high-strength refractory material and can bear impact and high-temperature erosion of molten metal and molten slag.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical engineering technology, and in particular to a furnace lining for metal smelting. Background Technology

[0002] Metal smelting is an indispensable and crucial process in modern industry. As a vital component of the smelting furnace, the furnace lining bears the dual challenges of high temperatures, mechanical stress, and chemical corrosion. The quality of the furnace lining directly impacts the efficiency, cost, and safety of the smelting process. Therefore, the design and material selection of the furnace lining are of paramount importance in addressing these challenges.

[0003] In practice, traditional metal smelting furnace linings are generally composed of a single refractory material, such as refractory bricks or refractory castables. While these materials can provide some protection against high temperatures and chemicals, they often have limitations in the following aspects:

[0004] Limited high-temperature resistance: Some traditional materials soften, deform, or melt when exposed to temperatures exceeding a certain level.

[0005] Susceptible to cracks and damage: Traditional furnace linings lack self-healing capabilities and are prone to accelerated aging due to the formation of micro-cracks, leading to furnace lining failure.

[0006] Significant heat loss: Traditional furnace linings generally have poor thermal insulation performance, which can easily lead to energy loss and reduce smelting efficiency.

[0007] Frequent maintenance and replacement: Due to the rapid wear and tear of materials, traditional furnace linings require frequent maintenance and replacement, which increases smelting costs. When replacing the furnace lining, screws and nuts are usually used for fixing. Fixing not only requires the use of tools, but also requires unlocking by turning the nuts one by one, which is quite laborious.

[0008] Therefore, a furnace lining for metal smelting is proposed to solve the above problems. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] In order to solve the above-mentioned problems of the prior art, this utility model provides a furnace lining for metal smelting, which solves the problems of insufficient temperature resistance, repair and heat insulation performance, high maintenance cost and laborious replacement of traditional furnace linings.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, the main technical solution adopted by this utility model is as follows:

[0013] A furnace lining for metal smelting is applied to a metal smelting furnace body. The furnace body has a furnace lining composite mechanism inside and a locking mechanism inside. The locking mechanism includes a lead screw, a transmission handle, a fixed ring, locking holes, locking rods, locking arc plates, and limiting plates. The fixed ring has multiple locking holes on both side walls. Multiple locking rods are fixedly connected to the inner walls of the two locking arc plates. One end of each locking rod is inserted into the inner wall of a multiple locking hole. Limiting plates are fixedly connected to the outer walls of the two locking arc plates. A lead screw is threadedly connected to the middle of the two limiting plates.

[0014] The furnace lining composite structure includes a heat insulation support layer, a working layer, a high-temperature shielding layer, a self-healing layer, and a heat insulation layer. The inner wall of the heat insulation support layer is connected to the heat insulation layer, the inner wall of the heat insulation layer is adhered to the self-healing layer, the inner wall of the self-healing layer is connected to the high-temperature shielding layer, and the inner wall of the high-temperature shielding layer is connected to the working layer.

[0015] A burner is connected to the front of the metal smelting furnace body.

[0016] One end of the lead screw is rotatably connected to the inner wall of the metal smelting furnace body, and the other end of the lead screw passes through the metal smelting furnace body and is fixedly connected to a transmission handle.

[0017] A crucible is installed inside the metal smelting furnace body, and the fixing ring is fixedly sleeved on the outer wall of the heat insulation support layer.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows: The locking mechanism effectively and firmly fixes the furnace lining within the metal smelting furnace, avoiding the risk of loosening or displacement of the lining during high-temperature operations. This structure, through mechanical components such as lead screws, locking arc plates, and locking rods, ensures the stability of the furnace lining throughout the smelting process, guaranteeing its safety. Furthermore, the locking mechanism facilitates quick installation and disassembly, simplifying operation and significantly improving equipment maintenance efficiency, reducing downtime and labor costs. Secondly, the composite furnace lining structure optimizes the lining's performance through a multi-layered material structure. Its inner working layer is composed of high-strength refractory material, capable of withstanding molten metal... The furnace lining is resistant to impacts and high-temperature erosion from molten slag and metals. A high-temperature shielding layer effectively resists chemical corrosion from molten slag and metals, ensuring the furnace body remains undamaged. A self-healing layer possesses strong self-healing capabilities; when micro-cracks occur, it can automatically fill and restore structural integrity, significantly improving the service life of the furnace lining. The design of the insulation layer and thermal support layer greatly improves thermal efficiency, reduces energy loss, and decreases the external heat load on the furnace body, further enhancing the energy utilization rate of smelting operations. This composite structure not only enhances the furnace lining's resistance to erosion and high temperatures but also provides a more efficient and safer operating environment for metal smelting, significantly improving overall production efficiency and equipment reliability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the composite furnace lining mechanism of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 For the present utility model Figure 2 Enlarged view at point B in the middle;

[0024] Figure 5 This is a side view of the present invention.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1. Metal smelting furnace body; 2. Locking mechanism; 201. Lead screw; 202. Transmission handle; 203. Fixing ring; 204. Locking hole; 205. Locking rod; 206. Locking arc plate; 208. Limiting plate; 3. Furnace lining composite mechanism; 301. Thermal insulation support layer; 302. Working layer; 303. High temperature shielding layer; 304. Self-healing layer; 305. Thermal insulation layer; 4. Burner; 5. Crucible. Detailed Implementation

[0027] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Please refer to Figures 1 to 5 As shown, this utility model discloses a furnace lining for metal smelting, applied to a metal smelting furnace body 1. The furnace body 1 is equipped with a furnace lining composite mechanism 3 and a locking mechanism 2. The locking mechanism 2 includes a lead screw 201, a transmission handle 202, a fixing ring 203, a locking hole 204, a locking rod 205, a locking arc plate 206, and a limiting plate 208. Multiple locking holes 204 are opened on both sides of the fixing ring 203. Multiple locking rods 205 are fixedly connected to the inner walls of the two locking arc plates 206. One end of each locking rod 205 is inserted into the inner wall of the multiple locking holes 204. Limiting plates 208 are fixedly connected to the outer walls of the two locking arc plates 206. The lead screw 201 is threadedly connected to the middle of the two limiting plates 208.

[0029] The furnace lining composite structure 3 includes a heat-insulating support layer 301, a working layer 302, a high-temperature shielding layer 303, a self-healing layer 304, and a heat-insulating layer 305. The inner wall of the heat-insulating support layer 301 is connected to the heat-insulating layer 305, the inner wall of the heat-insulating layer 305 is adhered to the self-healing layer 304, the inner wall of the self-healing layer 304 is connected to the high-temperature shielding layer 303, and the inner wall of the high-temperature shielding layer 303 is connected to the working layer 302. In actual implementation, during the metal smelting process, the furnace lining needs to withstand the direct impact of high-temperature molten metal and slag. To ensure the stable fixation of the furnace lining, the locking mechanism 2 uses components such as a lead screw 201, a locking arc plate 206, and a locking rod 205. The rotation of the lead screw 201 is adjusted through the transmission handle 202, thereby firmly locking the furnace lining inside the metal smelting furnace body 1. The multiple locking holes 204 of the fixing ring 203 cooperate with the locking rod 205 to ensure that the furnace lining composite mechanism 3 can maintain a stable position in a high-temperature environment, preventing displacement or loosening due to thermal expansion and contraction or vibration. This locking mechanism 2 is easy to operate, allowing for quick installation, disassembly, and replacement of the furnace lining composite mechanism 3, improving maintenance efficiency and operational safety. The furnace lining composite mechanism 3 is composed of multiple layers of materials, each performing different functions, as detailed below:

[0030] Working layer 302: Located in the innermost layer of the furnace lining composite structure 3, it is in direct contact with molten metal and slag. The working layer 302 is made of high-temperature refractory materials (such as magnesia-carbon bricks, high-alumina bricks, etc.), which can withstand the high temperature and strong corrosiveness of molten metal, ensuring the physical stability of the metal smelting process.

[0031] High-temperature shielding layer 303: The high-temperature shielding layer 303 outside the working layer 302 can effectively resist the erosion of molten slag, molten metal and chemical substances. It is made of materials such as silicon carbide and boron carbide, and its temperature resistance is higher than 2000℃, which can greatly improve the erosion resistance of the furnace lining composite structure 3.

[0032] Self-healing layer 304: The self-healing layer 304 outside the high-temperature shielding layer 303 has the function of repairing microcracks. During the smelting process, when microcracks appear on the surface of the furnace lining composite structure 3, the contained nano-alumina and zirconium oxide micro powder can automatically react to generate a protective film, fill the cracks, restore the integrity of the furnace lining composite structure 3, and extend its service life.

[0033] Insulation layer 305: The self-healing layer 304 is surrounded by an insulation layer 305, which uses lightweight refractory bricks, ceramic fibers and other high-efficiency insulation materials. It can significantly reduce heat transfer, reduce heat loss and improve the thermal efficiency of the metal smelting furnace body 1.

[0034] Thermal insulation support layer 301: Located on the outermost layer of the furnace lining composite structure 3, it mainly serves to bear load and provide thermal insulation. The thermal insulation support layer 301 is made of high-strength refractory castable or expanded perlite, which has excellent compressive strength and thermal insulation properties, ensuring that the furnace lining composite structure 3 can stably withstand the pressure under high-temperature environment, while preventing heat from leaking outward.

[0035] Optionally, a burner 4 is connected to the front of the metal smelting furnace body 1. In actual implementation, during the smelting process, the user can heat the metal smelting furnace body 1 through the burner 4.

[0036] Optionally, one end of the lead screw 201 is rotatably connected to the inner wall of the metal smelting furnace body 1, and the other end of the lead screw 201 passes through the metal smelting furnace body 1 and is fixedly connected to a transmission handle 202. In actual implementation, the operator can directly control the rotation of the lead screw 201 through the transmission handle 202, thereby completing the operation of locking or unlocking the furnace lining composite mechanism 3.

[0037] Optionally, a crucible 5 is installed inside the metal smelting furnace body 1, and a fixing ring 203 is fixedly sleeved on the outer wall of the heat insulation support layer 301. In actual implementation, during installation, the operator needs to ensure that the position of the crucible 5 is tightly fitted with the inner wall of the metal smelting furnace body 1 to prevent the crucible 5 from tilting or shifting during the smelting process.

[0038] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A furnace lining for metal smelting, applied to a metal smelting furnace body (1), characterized in that: The interior of the metal smelting furnace body (1) is provided with a furnace lining composite mechanism (3), and the interior of the metal smelting furnace body (1) is provided with a locking mechanism (2), the locking mechanism (2) comprises a lead screw (201), a transmission handle (202), a fixed ring (203), a locking hole (204), a locking rod (205), a locking arc plate (206) and a limiting plate (208), a plurality of locking holes (204) are formed in the two side walls of the fixed ring (203), the inner walls of the two locking arc plates (206) are fixedly connected with a plurality of locking rods (205), one end of the plurality of locking rods (205) is respectively inserted into the inner wall of the plurality of locking holes (204), the outer walls of the two locking arc plates (206) are fixedly connected with limiting plates (208), and the middle portions of the two limiting plates (208) are threadedly connected with the lead screw (201). The furnace lining composite mechanism (3) comprises a heat-insulating support layer (301), a working layer (302), a high-temperature shielding layer (303), a self-repairing layer (304) and a heat-insulating layer (305), the inner wall of the heat-insulating support layer (301) is connected with the heat-insulating layer (305), the inner wall of the heat-insulating layer (305) is attached with the self-repairing layer (304), the inner wall of the self-repairing layer (304) is connected with the high-temperature shielding layer (303), and the inner wall of the high-temperature shielding layer (303) is connected with the working layer (302).

2. A furnace lining for the smelting of metals according to claim 1, characterised in that: The front of the metal smelting furnace body (1) is connected with a burner (4).

3. A furnace lining for the smelting of metals according to claim 1, characterised in that: One end of the lead screw (201) is rotatably connected to the inner wall of the metal smelting furnace body (1), and the other end of the lead screw (201) penetrates through the metal smelting furnace body (1) and is fixedly connected with the transmission handle (202).

4. A furnace lining for the smelting of metals according to claim 1, characterised in that: The interior of the metal smelting furnace body (1) is provided with a furnace lining composite mechanism (3), and the interior of the metal smelting furnace body (1) is provided with a locking mechanism (2), the locking mechanism (2) comprises a lead screw (201), a transmission handle (202), a fixed ring (203), a locking hole (204), a locking rod (205), a locking arc plate (206) and a limiting plate (208), a plurality of locking holes (204) are formed in the two side walls of the fixed ring (203), the inner walls of the two locking arc plates (206) are fixedly connected with a plurality of locking rods (205), one end of the plurality of locking rods (205) is respectively inserted into the inner wall of the plurality of locking holes (204), the outer walls of the two locking arc plates (206) are fixedly connected with limiting plates (208), and the middle portions of the two limiting plates (208) are threadedly connected with the lead screw (201).

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